The BLDC motor can either be stationary or windmilling in forward or reverse direction when a motor run (non-zero reference) command is received by MCx83xx. Depending on the initial motor state (stationary or windmilling), there are different configurable options available to drive the BLDC motor to user to set reference – MCx83xx can either apply a brake to bring the motor to a stationary state before driving to set reference; alternately, MCx83xx can also resync to motor speed and direction in real time in forward direction. This application note discusses the settings available to configure the pre-start behavior of MCx83xx to achieve designed performance for start-up.
The content is applicable for MCx83xx family:
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